BK202503 Spring Kafka listener review
Review changed listener files only. Read pom.xml or Gradle manifests only to identify Spring Boot and Spring Kafka versions.
Check bounded retries and backoff, a recoverer and monitored DLT after exhausted retries, @RetryableTopic interactions with DefaultErrorHandler, acknowledgement on every MANUAL path, ack-before-async-completion races, Kotlin suspend listener compatibility, child coroutine completion before acknowledgement, and consumer idempotency assumptions.
Return findings with severity, file and line, delivery or data-loss impact, and a concrete fix. Do not modify code.